As Mussina walked to the mound to throw his first pitch against the White Sox on Wednesday, the Yankees' starter for that game against the Mets was listed as "TBA."
Yankees manager Joe Torre said that could change by the time business was completed in Chicago on Wednesday evening, with the Yankees taking part in their second doubleheader -- and first split-admission tilt -- of the season.
"We have some options to look at," Torre said. "We're going to wait until these two games are over with, and then look and see if we can make a decision."
Depending on how his Game 2 start against the White Sox goes, Torre indicated that right-hander Chien-Ming Wang could possibly come back on three days of rest to pitch against the Mets.
As a sinkerballer, Torre said that Wang could be better equipped than Mussina to handle the Mets' lineup, given the thought that a decrease in velocity wouldn't necessarily hurt Wang's ability to induce ground balls.
"Wang may be a little stronger at this point," Torre said. "It's what he does. He's never been a pitch count guy. He's used up a lot of pitches."
If the Yankees decide not to go with Wang, Torre indicated that the alternative options are being considered from the Triple-A roster.
Left-hander Chase Wright, who made two starts with New York this year, is on the 40-man roster and would appear to be a realistic option. He is lined up to pitch Saturday for Scranton/Wilkes-Barre and has performed well, with a 1-1 record and a 3.15 ERA in three starts.
Wright was promoted to the big leagues in April from Double-A Trenton and made two starts, but was shipped back to the Minors after allowing four consecutive home runs in a loss to the Red Sox at Fenway Park on April 22.
"I have no problem with Chase Wright," Torre said. "He has a good makeup, as far as I'm concerned."
Another option could be right-hander Tyler Clippard, who is 3-2 with a 2.79 ERA in seven starts. Clippard is scheduled to pitch Thursday for Scranton/Wilkes-Barre.
Back on the hill: One person not being considered to be summoned to the Major Leagues for Sunday's start is left-hander Kei Igawa, who is still in the midst of having his mechanics deconstructed and analyzed at the Yankees' Legends Field complex in Tampa, Fla.
Working with pitching coordinator Nardi Contreras and Class A pitching coach Gil Patterson, Igawa will get to exhibit his alterations for the first time on Saturday, as he has been scheduled to start for the Tampa Yankees against the Fort Myers Miracle.
"We knew what he needed to do," Torre said. "[Igawa needs to] pretty much stay over the rubber, stay back and then explode forward. He'd been straying a little bit, and that's where his arm had trouble catching up. That's why he was so inconsistent with his command."
It figures to be a challenging weekend for Fort Myers, the Minnesota Twins' Florida State League affiliate. The Miracle will see Igawa less than 24 hours after digging in for Roger Clemens' first Minor League start on Friday.
Lineup changes: The Yankees offered a slightly modified version of their rained-out lineup from Tuesday evening for Game 1 on Wednesday, with Johnny Damon moving out of the designated hitter spot and playing center field.
Hideki Matsui, who had been slated to play left field, switched to the Yankees' DH, with Melky Cabrera shifting from center field to left. Torre said he planned to use Robinson Cano as the second baseman in Game 2, with backup catcher Wil Nieves working with Wang in the nightcap.
With the upcoming tilts against the Mets and Red Sox, Wednesday could be the only off-day in sight for Posada, who is also expected to catch in the series finale Thursday at Chicago.
Injury updates: Right-hander Phil Hughes has spent part of this week chatting with Clemens in Tampa. While Hughes has been able to hear some up-close-and-personal instruction on the art of power pitching, actually performing the act has been another story.
Torre said Hughes has been limited to tossing on flat ground, but a half-mound bullpen session is in the near future.
At the time of Hughes' strained left hamstring May 1 at Texas -- which came as he was working in the seventh inning of a no-hitter -- the Yankees estimated that he could return in four to six weeks, the low end of which now does not appear likely.
Coming up: After Wang (2-1, 4.76 ERA) faces right-hander Jose Contreras (3-3, 3.79 ERA) in Game 2 of Wednesday's twin bill, the Yankees finish up their three-game series with the White Sox on Thursday afternoon.
Right-hander Matt DeSalvo (1-0, 1.98 ERA) is scheduled to make his third Major League start on Thursday, matching up with Chicago right-hander Jon Garland (2-2, 3.44 ERA). First pitch is slated for 2:05 p.m. ET, with the action televised on the YES Network.
Bryan Hoch is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.